Just purchased a new to me Freestar. Owner told me mirrors were inop due to aftermarket alarm/remote start install. Also found cruise control and power 1/4 vents inop. Installer checked system and said not their fault. Suggested under hood fusebox bad, common point to defective components, says well known Ford problem.

Pulled trim and both 1/4 vents had + or - 12V at plug depending on switch position. Pulled motors and they ran with direct h/u to spare battery. Sluggish and then not at all when connected to circut. "Answer now" rep says motors are bad. Seems like low power. 12V but not enough current?

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